.net Framework 7 Download ##TOP##
Marylee Guffy
If I click "Install other frameworks..." I'm taken to a page that says .NET Framework versions are included in Visual Studio 2017 -- which is exactly what I'm using to edit this project. This is where I got stuck.
The .NET Framework (pronounced as "dot net") is a proprietary software framework developed by Microsoft that runs primarily on Microsoft Windows. It was the predominant implementation of the Common Language Infrastructure (CLI) until being superseded by the cross-platform .NET project. It includes a large class library called Framework Class Library (FCL) and provides language interoperability (each language can use code written in other languages) across several programming languages. Programs written for .NET Framework execute in a software environment (in contrast to a hardware environment) named the Common Language Runtime (CLR). The CLR is an application virtual machine that provides services such as security, memory management, and exception handling. As such, computer code written using .NET Framework is called "managed code". FCL and CLR together constitute the .NET Framework.
FCL provides the user interface, data access, database connectivity, cryptography, web application development, numeric algorithms, and network communications. Programmers produce software by combining their source code with .NET Framework and other libraries. The framework is intended to be used by most new applications created for the Windows platform. Microsoft also produces an integrated development environment for .NET software called Visual Studio.
In April 2019, Microsoft released .NET Framework 4.8, the last major version of the framework as a proprietary offering, followed by .NET Framework 4.8.1 in August 2022. Only monthly security and reliability bug fixes to that version have been released since then. No further changes to that version are planned. The .NET Framework will continue to be included with future releases of Windows and continue to receive security updates, with no plans to remove it as of November 2023.[3]
While Microsoft and their partners hold patents for CLI and C#, ECMA and ISO require that all patents essential to implementation be made available under "reasonable and non-discriminatory terms". The firms agreed to meet these terms, and to make the patents available royalty-free. However, this did not apply to the part of the .NET Framework not covered by ECMA-ISO standards, which included Windows Forms, ADO.NET, and ASP.NET. Patents that Microsoft holds in these areas may have deterred non-Microsoft implementations of the full framework.[8]
Common Language Infrastructure (CLI) provides a language-neutral platform for application development and execution. By implementing the core aspects of .NET Framework within the scope of CLI, these functions will not be tied to one language but will be available across the many languages supported by the framework.
Because computer systems commonly require interaction between newer and older applications, .NET Framework provides means to access functions implemented in newer and older programs that execute outside .NET environment. Access to Component Object Model (COM) components is provided in System.Runtime.InteropServices and System.EnterpriseServices namespaces of the framework. Access to other functions is via Platform Invocation Services (P/Invoke). Access to .NET functions from native applications is via the reverse P/Invoke function.
While Microsoft has never implemented the full framework on any system except Microsoft Windows, it has engineered the framework to be cross-platform,[23] and implementations are available for other operating systems (see Silverlight and Alternative implementations). Microsoft submitted the specifications for CLI (which includes the Base Class Libraries, CTS, and CIL),[24][25][26] C#,[5] and C++/CLI[27] to both Ecma International (ECMA) and International Organization for Standardization (ISO), making them available as official standards. This makes it possible for third parties to create compatible implementations of the framework and its languages on other platforms.
.NET Framework includes a garbage collector (GC) which runs periodically, on a separate thread from the application's thread, that enumerates all the unusable objects and reclaims the memory allocated to them. It is a non-deterministic, compacting, mark-and-sweep garbage collector. GC runs only when a set amount of memory has been used or there is enough pressure for memory on the system. Since it is not guaranteed when the conditions to reclaim memory are reached, GC runs are non-deterministic. Each .NET application has a set of roots, which are pointers to objects on the managed heap (managed objects). These include references to static objects, objects defined as local variables or method parameters currently in scope, and objects referred to by CPU registers.[30] When GC runs, it pauses the application and then, for each object referred to in the root, it recursively enumerates all the objects reachable from the root objects and marks them as reachable. It uses CLI metadata and reflection to discover the objects encapsulated by an object, and then recursively walk them. It then enumerates all the objects on the heap (which were initially allocated contiguously) using reflection. All objects not marked as reachable are garbage.[30] This is the mark phase.[31] Since the memory held by garbage is of no consequence, it is considered free space. However, this leaves chunks of free space between objects which were initially contiguous. The objects are then compacted together to make free space on the managed heap contiguous again.[30][31] Any reference to an object invalidated by moving the object is updated by GC to reflect the new location.[31] The application is resumed after garbage collection ends. The latest version of .NET framework uses concurrent garbage collection along with user code, making pauses unnoticeable, because it is done in the background.[32]
The garbage collector used by .NET Framework is also generational.[33] Objects are assigned a generation. Newly created objects are tagged Generation 0. Objects that survive one garbage collection are tagged Generation 1. Generation 1 objects that survive another collection are Generation 2. The framework uses up to Generation 2 objects.[33] Higher generation objects are garbage collected less often than lower generation objects. This raises the efficiency of garbage collection, as older objects tend to have longer lifetimes than newer objects.[33] By ignoring older objects in most collection runs, fewer checks and compaction operations are needed in total.[33]
.NET Framework was the predominant implementation of CLI, until the release of .NET. Other implementations for parts of the framework exist. Although the runtime engine is described by an ECMA-ISO specification, other implementations of it may be encumbered by patent issues; ISO standards may include the disclaimer, "Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights."[41] It is harder to develop alternatives to FCL, which is not described by an open standard and may be subject to copyright restrictions. Also, parts of FCL have Windows-specific functions and behavior, so implementation on non-Windows platforms can be problematic.
Your plugin has actually been runnnig under .NET 4.8 for the entire time that Rhino 7 has been available as that is the framework version that ships with Rhino andn is what Rhino loads. We finally got around to getting all of our libraries updated to properly show that they target 4.8.
In 2002, Microsoft promised one framework to build applications with any programming language: C# (born for that occasion), Visual Basic, and many other languages. The framework granted a common API set, language independence, interoperability with the underlying operating system and other non-.NET applications, portability (at least in perspective, at the time), and many interesting features.
Don't get me wrong. Even if I'm speaking in the past tense, the .NET Framework is still alive and operative. Its current version is 4.8, and it is the last version of the framework, as you will learn later. But a huge amount of code runs on it, so you cannot consider it a dead framework yet.
In 2007, this paved the way for a project to port .NET to Linux: the Mono Project. Other attempts to port .NET on Linux were made: DotGNU and CrossNet, among others. However, only the Mono Project attracted significant interest and generated a production-ready framework.
The open specifications of the .NET fundamental components were the first step towards the quick spread of the framework. Microsoft on one side and other independent developers on the other side brought the .NET Framework to different platforms.
When the .NET Framework was born, Microsoft also released the .NET Compact Framework. It was a reduced version of the framework designed to run on devices with limited computing capacity, such as PDAs, mobile phones, set-top boxes, etc.In 2007, the .NET Micro Framework was launched: a more efficient version of the .NET Compact Framework that could also run directly on the hardware.
In 2009, the MonoTouch project started. It was the first attempt to port the Mono framework (that is, the Linux implementation of the .NET Framework) to iOS and Android. In a few years, the MonoTouch project became the foundation for Xamarin, the framework for building Android and iOS apps with C# (2013).
In 2014, to pursue the goal of an actual cross-platform development framework, Microsoft started writing .NET Core from scratch. The first release was ready in 2016. The new framework was a complete redesign of the .NET specifications with cross-platform support in mind. In fact, its runtime ran on Windows, Linux, and macOS.
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